OK. I have a version of the Booter which does post loadfile()
ELF section header parsing, and now I am trying to decide how to pass
the Elf header pointer to the kernel.


	At the moment, the kernel source does this:

extern void ddb_init(int symsize, void *vss, void *vse);
...
src/sys/arch/mac68k/mac68k/machdep.c,v 1.262
...
                /* 
                 * Initialize kernel debugger, if compiled in.
                 */
                {
                        extern int end;
                        extern int *esym;
 
                        ddb_init(*(int *)&end, ((int *)&end) + 1, esym);   
                }
...
        /*
         * Get end of symbols for kernel debugging
         */
        esym = (int *)getenv("END_SYM");
#ifndef SYMTAB_SPACE
        if (esym == (int *)0)
#endif
                esym = (int *)&end;
...




	where END_SYM is set by the Booter. Now, I can easily pass
in a MARK_SYM environment variable (and MARK_START, MARK_END, et c.).
What I don't understand at the moment is - where is 'extern int end'
defined and/or set ? I can't seem to find it.

-- 
| Nigel Pearson, nigel@ind.tansu.com.au | "Reality is that which,   |
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